Unclear It is not clear how these file steps are switched on or where a reader would see them.
MCP servers are outside programs that give Claude extra tools. Claude Code wraps those tools with extra steps, and several were added:
- A step that saves task files, for connected servers that pass a check.
- A file upload step for servers that run inside an app pane, used when Claude Code is not running remotely or in cowork.
- An override that keeps one server from being allowed through by a permission bypass mode.
- Tools that refer to files can now refuse with
desktop_drive_fill_not_declaredordesktop_drive_fill_declaration_conflict, and can have the file filled in on the host side.
These point to new work on how files move between Claude, MCP tools and the desktop and cowork apps. If an MCP tool refuses with one of the two messages above, the file it was given was not declared correctly.
tengu_mcp_strip_trailing_xml_tags Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.309: off
These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.
Read once, for one account on one subscription tier, against v2.1.309. It isn't a statement about your account. What a flag value here can and cannot tell you
It is not clear how these file steps are switched on or where a reader would see them.